#a{
    background-color:#509a80;
    width:100%;
    height:100px;
    border-radius: 5px;
    display: flex;
    align-items: center;

}
#b{
    margin-left:40px;
    display: flex;
    flex-direction: column;
    width:180px;
    height:588px;
    border: 1px solid rgb(228, 215, 167);
    border-radius: 10px;
    box-shadow: 0px 2px 4px rgba(0, 0, 0, 0.4);
    margin: 20px auto;
    padding: 20px;
}
#b a{
    position: relative;
    text-decoration: none;
}
input {
    margin-left: 1000px;
}
#content_right{
    width: calc(90% - 100px);
    height:calc(85vh - 100px);
    float:right;
    border:0;
    border: 1px solid rgb(228, 215, 167);
    border-radius: 10px;
    box-shadow: 0px 2px 4px rgba(0, 0, 0, 0.4);
    margin: 20px auto;
    padding: 20px;
}
#c{
    display: flex;
    border-radius: 10px;
    height:20px;
}
#content_right iframe{
    border:none;
}
body td{
    border-radius: 5px;
}